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Finding the Fourth Proportional to 638,010.60, 956,555.10 and 357,613.80

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Solution

The fourth proportional to 638,010.60, 956,555.10 and 357,613.80 is: 536,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,010.60 : 956,555.10 = 357,613.80 : x
  2. Step 2: Convert to fraction form
    638,010.60/956,555.10 = 357,613.80/x
  3. Step 3: Cross multiply
    638,010.60x = 956,555.10 × 357,613.80
  4. Step 4: Simplify right side
    638,010.60x = 342,077,304,220.38
  5. Step 5: Solve for x
    x = 342,077,304,220.38/638,010.60
  6. Step 6: Final answer
    x = 536,162.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.